JPH0248230U

JPH0248230U -

Info

Publication number: JPH0248230U
Application number: JP12338988U
Authority: JP
Priority date: 1988-09-20
Filing date: 1988-09-20
Publication date: 1990-04-03
Anticipated expiration: 2003-09-20
Also published as: JPH0641702Y2

Description

[Brief explanation of drawings]

第１〜第７図は本考案の一実施例を示し、第１
図はコイルばねの断面図、第２図はコイルばね用
素線の断面図、第３図はコイリング装置の概略を
示す側面図、第４、第５、第６図は第３図―
線、―線、―線断面図、第７図は素線と
コイル軸線との関係を示す説明図、第８図は他の
コイルばね用素線の断面図、第９図は第８図の素
線に対応する先端ガイド型の断面図である。 α，β……傾き角、Ａ―Ａ……コイル軸線、ａ
_１―ａ_１……直線、ｄ_１，ｄ_２……長径、_１―
_１，_４―_４，_６―_６……長径延長線、
１……コイルばね、２……素線、４，２５……ね
じれ規制面、７_１〜７_４……第１〜第４供給ロー
ラ対、８……ガイド孔、９……先端ガイド型、１
０……コイリング部材、１１……ピツチツール、
１２，１５……ガイド溝、１３_１，１３_２……第
１、第２ローラ、１４……凸弧面、１７，２６…
…押え面。 1 to 7 show an embodiment of the present invention.
The figure is a cross-sectional view of the coil spring, Figure 2 is a cross-sectional view of the coil spring wire, Figure 3 is a side view schematically showing the coiling device, and Figures 4, 5, and 6 are Figure 3.
7 is an explanatory diagram showing the relationship between the wire and the coil axis, FIG. 8 is a sectional view of another wire for coil springs, and FIG. 9 is the same as in FIG. 8. It is a sectional view of the tip guide type corresponding to a strand. α, β...Inclination angle, A-A...Coil axis line, a
₁ - a ₁ ... straight line, d ₁ , d ₂ ... major axis, ₁ -
₁ _, _4-4 , _6-6 ...longer _diameter extension line,
DESCRIPTION OF SYMBOLS 1... Coil spring, 2... Element wire, 4, 25... Torsion regulating surface, 7 ₁ to 7 ₄ ... First to fourth supply roller pairs, 8... Guide hole, 9... Tip guide type, 1
0... Coiling member, 11... Pitch tool,
12, 15... Guide groove, 13 ₁ , 13 ₂ ... First and second rollers, 14... Convex arc surface, 17, 26...
...presser surface.

Claims

[Scope of utility model registration request]

As a coil spring wire, a wire having a substantially oval cross section with asymmetrical both sides in the long diameter direction and a torsion regulating surface at one end on the long diameter side of the cross section is used. When manufacturing a coil spring by coiling so that the wire crosses the coil axis, a pair of supply rollers that feed the wire in one direction and a pair of supply rollers that feed the wire in one direction, and the wire fed by the pair of supply rollers are inserted and guided. a tip guide mold having a guide hole having a cross-sectional shape similar to the cross-sectional shape of the wire; a coiling member disposed near the tip guide mold to coil the wire passing through the guide hole; a pitch tool for moving the coil formed by the coiling member in the coil axial direction; It consists of a second roller having a guide groove that slides against the convex arc surface on the opposite side to the torsion regulating surface, and the guide hole is adapted to the torsion regulating surface of the strand to prevent the strand from coiling. In the coiling device, the long axis extension line of the guide hole is inclined with respect to a straight line parallel to the coil axis so that the long axis extension line has an inclination angle in order to give a twist in a direction opposite to the twist direction. A coiling device characterized in that a major axis extension line of a virtual strand cross section defined by a pair of guide grooves has an inclination angle equal to an inclination angle of the major axis extension line of the guide hole.